Modeling Surface Conductivity in a Sweat Analyzing Wearable Smart Textile Platform

AbstractPatients often report an effect after surgery of the anterior cruciate ligament which is called "giving way". This manifest itself by a drop of the knee or a felt instability. This phenomenon is difficult to measure and validate because it usually does not occur regularly and is not reproducible under laboratory conditions. The Knetex project takes up this point by trying to actively support the rehabilitation process with a bandage that can be worn in everyday life and is constructed as a smart textile using sensors and actuators. For this purpose, on the one hand it is attempted to actively record the phenomenon of the "giving way" by measuring knee angles etc. and by active user feedback. At the same time, the patient is specifically advised by means of actuators to correct incorrect posture or movement in order to make the rehabilitation process more effective and prevent further damage. Two 9-axis IMUs (inertial measurement units) form the basis of the system. These are used together with a textile strain sensor to calculate the knee angles. This paper gives an overview of the planned system, the initial experiments to measure the knee angles and the first results of the actuator study.

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Review on Data Acquisition of Electrocardiogram Biometric Recognition in Wearable Smart Textile Shirts

Journal of Physics Conference Series ◽

10.1088/1742-6596/1900/1/012019 ◽

2021 ◽

Vol 1900 (1) ◽

pp. 012019

Author(s):

Muhammad Muizz Mohd Nawawi ◽

Khairul Azami Sidek ◽

Alaa K Y Dafhalla ◽

Amelia Wong Azman

Keyword(s):

Data Acquisition ◽

Biometric Recognition ◽

Smart Textile

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Simultaneous Thermochromic Pigment Printing and Se-NP Multifunctional Finishing of Cotton Fabrics for Smart Childrenswear

Clothing and Textiles Research Journal ◽

10.1177/0887302x19899992 ◽

2020 ◽

Vol 38 (3) ◽

pp. 182-195

Author(s):

Tarek M. Abou Elmaaty ◽

Shereen A. Abdeldayem ◽

Nashwa Elshafai

Keyword(s):

Cotton Fabrics ◽

Factors Affecting ◽

Textile Materials ◽

Smart Textile ◽

Screen Printing Technique ◽

Printing Technique ◽

Flat Screen ◽

Ultraviolet Protection ◽

Escherichia Coli Bacteria ◽

Optimum Formula

Thermochromic (TC) pigments offer significant potential for functional and aesthetic design of smart textile materials. In this study, TC (blue and red) pigments were applied to cotton fabrics and printed on especially designed childrenswear by flat screen printing technique. The antibacterial and ultraviolet protection functionalities have been implemented into the fabrics under study by using selenium nanoparticles. The factors affecting the printing process were studied and the optimum formula was screen printed to produce the pattern’s designs of childrenswear. After conducting several tests, the results showed a significant color-changing effect depending on temperature, the color fastness properties to light, wash, and rubbing were excellent. Antibacterial activity of printed fabrics was very good against Bacillus cereus and Escherichia coli bacteria and the anti-ultraviolet protection was found to be very good. The printed fabrics can be as protective childrenswear as shown in this work.

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